schliz writes: Australia's UBank has put a billion real-world transaction records behind a website that allows users to compare their spending habits with others of the same gender, in the same age/income range, neighborhood and living situation. The 'PeopleLikeU' tool surfaces favorite shops and restaurants surprisingly accurately — because it's based on real customers' transactions, it lists places like good takeout joints that wouldn't normally come to mind when you think of a favorite place to eat. The bank says all data was 'deidentified' and it consulted with privacy authorities.